--- product_id: 686051427 title: "Kids Boys Thermal Underwear Set - Fleece Lined Base Layers Top & Bottom Toddler Long Johns for Cold Winter" brand: "resinta" price: "¥5132" currency: JPY in_stock: true category: "Resinta" url: https://www.desertcart.jp/products/686051427-kids-boys-thermal-underwear-set-fleece-lined-base-layers-top store_origin: JP region: Japan --- # 92% polyester for quick-dry warmth Thick fleece lining for ultimate insulation 4-way stretch for unrestricted movement Kids Boys Thermal Underwear Set - Fleece Lined Base Layers Top & Bottom Toddler Long Johns for Cold Winter **Brand:** resinta **Price:** ¥5132 **Availability:** ✅ In Stock ## Summary > ❄️ Stay Warm, Play Hard: The Ultimate Thermal Set for Little Legends ## Quick Answers - **What is this?** Kids Boys Thermal Underwear Set - Fleece Lined Base Layers Top & Bottom Toddler Long Johns for Cold Winter by resinta - **How much does it cost?** ¥5132 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/686051427-kids-boys-thermal-underwear-set-fleece-lined-base-layers-top) ## Best For - resinta enthusiasts ## Why This Product - Trusted resinta brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Performance Fit:** Snug 4-way stretch design moves with your active kiddo - • **Tailored to Fit:** Multiple sizes ensure the perfect fit for growing boys - • **All-Day Cozy Comfort:** Soft fleece lining hugs tender skin without irritation - • **Durability Meets Style:** No shrinking, fading, or pilling—keeps looking fresh season after season - • **Versatile Winter Warrior:** Perfect base layer for skiing, hiking, or indoor lounging ## Overview The Resinta Kids Boys Thermal Underwear Set combines 92% polyester and 8% spandex with a thick fleece lining to deliver lightweight, breathable warmth. Designed with a 4-way stretch fit, it offers unrestricted movement and durability without shrinking or fading. Ideal for cold-weather layering or solo wear, this set is a must-have for active toddlers facing winter’s chill. ## Description Specifications: Color: as shown in the pictures Size: as shown in the pictures Material: 92% polyester, 8% spandex Package includes: boys' thermal underwear Note: Color difference may exist due to different displays. There may be a slight deviation in manual measurement. ## Features - Comfortable to wear: made from 92% polyester and 8% spandex, this boys' long johns thermal underwear set, with thick and warm fleece lining, is soft to touch and friendly to kids' tender skin, lightweight and breathable, drying quickly and insulating from the cold, bringing your kids warmth and comfort in the cold winter days. - Package Includes: This boys' winter thermal underwear set includes long-sleeve t-shirts and long johns, both in classic color. Designed for comfort and warmth, these thermals are great for layering under everyday clothes or wearing alone for lounging at home on chilly winter days. Ideal for outdoor activities or simply staying cozy indoors, this set is a must-have addition to boys' winter wardrobe. - Premium quality: with four-way stretch compression design, these toddler's thermal top and long johns can well fit boys' body while not restricting their movements, no balls, no shrinking and no fading; the cuffs are all neatly-sewn for added comfort and warmth, which makes the thermal underwear set must have accessories for boys in winter. - Versatile Performance: ideal for boys to wear both indoors and outdoors in freezing climates or bad weather; suitable for base layering, running, hiking, skiing, and camping, these kids' cotton warm underwear sets also make thoughtful presents for birthdays and Christmas, providing fantastic cold-weather gear to keep toddlers warm and comfortable all day long - Size Information: we offer thermal underwear set in different sizes customized for various toddler boys, please refer to the picture for more detailed size information carefully before purchasing to find the right size. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D95PZMN3 | | Age Range Description | Big Kid | | Apparel Closure Type | Pull On | | Apparel Fabric Stretch | High Stretch | | Apparel Fabric Weight Class | Lightweight | | Best Sellers Rank | #9,667 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #12 in Boys' Thermal Underwear Sets | | Brand Name | Resinta | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 800 Reviews | | Fabric Type | 92% Polyester, 8% Spandex | | Fabric type | 92% Polyester, 8% Spandex | | Fit Type | Snug | | Import Designation | Imported | | Manufacturer | Resinta | | Manufacturer Part Number | RS6099 | | Neck Style | Crew Neck | | Number of Items | 1 | | Occasion Type | exercise | | Origin | Imported | | Package Quantity | 1 | | Pattern | Solid | | Size | 9-10 Years | | Sleeve Length Description | Long Sleeve | | Sleeve Type | Long Sleeve | | Style Name | Classic | | Unit Count | 1 Count | ## Images ![Kids Boys Thermal Underwear Set - Fleece Lined Base Layers Top & Bottom Toddler Long Johns for Cold Winter - Image 1](https://m.media-amazon.com/images/I/61CB9-JDzJL.jpg) ## Available Options This product comes in different **Color, Size, Number Of Items** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/686051427-kids-boys-thermal-underwear-set-fleece-lined-base-layers-top](https://www.desertcart.jp/products/686051427-kids-boys-thermal-underwear-set-fleece-lined-base-layers-top) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-15*